MSG and the Red Bulls signed a contract extension, The Post has learned. It’s not a huge surprise, since they’ve been partners since MLS’ inaugural season. But this one shows growth since it was done months earlier than usual, is a multi-year deal, and will include a monthly show dedicated to the team.

“MSG Networks and the Red Bulls have enjoyed a long partnership together and we couldn’t be more thrilled to have them return to MSG Networks for their 20th season,” said Andrea Greenberg, president and chief executive officer, MSG Networks. “The team’s popularity is higher than ever and we’re excited to continue to present Red Bulls games on our networks.”

MSG Networks have been presenting the Red Bulls (and MetroStars) since their 1996 inception. But they’ve usually been one-year deals, sometimes even signed after the season-opener. This time they have a multi-year deal hammered out well in advance of the March 6 opener.

And even though neither the network nor the team will confirm it, sources told The Post there will also be a monthly show dedicated entirely to the Red Bulls. It’s likely a nod to the Red Bulls’ 2015 ratings being their best in years. At the moment it’s undetermined exactly who the on-air talent will be.

“MSG Networks has been a valued member of our family since the beginning and we are pleased to continue our partnership,” said Red Bulls general manager Marc de Grandpre. “It is a priority for us to continue to provide our fans with the best-in-class live sports production that they have enjoyed for over 20 years.”

The Red Bulls are coming off their second Supporters’ Shield in the past three years, notching the best record in MLS. And despite offseason upheaval and an early-season fan revolt, their ratings on MSG Networks were the highest in three seasons and up more than 65% from the previous season.

MSG Networks is slated to telecast at least 17 matches this season, including the March 6 opener against visiting Toronto FC at Red Bull Arena. Every game televised on MSG will also be streamed on MSG GO.